#include "comm.h"
#include <sys/wait.h>
#include <unistd.h>
#include <stdlib.h>
int main()
{
    umask(0);
    if(mkfifo(MY_FIFO, 0666) < 0){
      perror("mkfifo");  
      return 1;
    }
    //只需要文件操作即可
    int fd = open(MY_FIFO, O_RDONLY);
    if(fd < 0){
        perror("open");
        return 2;
    }
    while(1){
        char buffer[64] = {0};
        sleep(20);
        ssize_t s = read(fd, buffer, sizeof(buffer) - 1);
        if(s > 0){
            //success
            buffer[s] = 0;
            if(strcmp(buffer, "show") == 0){
                if(fork() == 0){
                    execl("/usr/bin/ls", "ls", "-l", NULL);
                    exit(1);
                }
                waitpid(-1, NULL, 0);
            }
            else if(strcmp(buffer, "run") == 0){
                if(fork() == 0){
                    execl("/usr/bin/sl", "sl", NULL);
                } 
            }
            else{
                printf("client: %s\n", buffer);
            }
        }
        else if(s == 0){
            //perror close
            printf("client qiut...\n");
            break;
        }
        else{
            //error
            perror("open");
            break;
        }
    }
    close(fd);
    return 0;
}
